From: Timo Sirainen <tss@iki.fi>
Date: Thu, 16 Apr 2009 23:48:10 +0000 (-0400)
Subject: shared mailboxes: Don't assert-crash if trying to look up "" user's mailboxes.
X-Git-Tag: 2.0.alpha1~928
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d927bc5618696157fc55eb1f11b5cab05400ed52;p=thirdparty%2Fdovecot%2Fcore.git

shared mailboxes: Don't assert-crash if trying to look up "" user's mailboxes.

--HG--
branch : HEAD
---

diff --git a/src/lib-storage/index/shared/shared-storage.c b/src/lib-storage/index/shared/shared-storage.c
index 58dc31f30c..8679a2d9c5 100644
--- a/src/lib-storage/index/shared/shared-storage.c
+++ b/src/lib-storage/index/shared/shared-storage.c
@@ -190,6 +190,7 @@ int shared_storage_get_namespace(struct mail_storage *_storage,
 			return -1;
 		}
 	}
+
 	/* successfully matched the name. */
 	if (userdomain == NULL) {
 		i_assert(username != NULL);
@@ -204,6 +205,11 @@ int shared_storage_get_namespace(struct mail_storage *_storage,
 			domain++;
 		}
 	}
+	if (*userdomain == '\0') {
+		mail_storage_set_error(_storage, MAIL_ERROR_PARAMS,
+				       "Empty username doesn't exist");
+		return -1;
+	}
 
 	/* expand the namespace prefix and see if it already exists.
 	   this should normally happen only when the mailbox is being opened */